Car-audio hobbyist. Here to compare notes, learn, and talk cars.
2023 Audi S5 Sportback, about 23,500 miles. There is a light buzz from the dash at one narrow RPM range. It disappears above and below that speed. Any good method for locating trim resonance without…
Battery passes a quick test and charging voltage looks normal, but after two or three days parked the car sometimes will not crank. What is the cleanest parasitic-draw test on a modern car that takes…
2023 GMC Sierra 1500 AT4, about 53,500 miles. Alignment printout is within spec, but the car still wants to drift right on a flat road. Tire pressures match. Would you cross-rotate tires to check rad…
2024 Buick Envision Avenir, about 39,000 miles. The reservoir goes from full to low over several weeks. No puddle, oil looks normal, and I cannot find dried coolant around the hoses. Is a pressure te…
Dealer gave me an order/reference number but the status has been unchanged for weeks. For people who have ordered cars, what updates are meaningful versus normal waiting between milestones?
